Question

elements with symbol X (atomic number 11) and Y (atomic number 13) are  placed in the III period of the modern periodic table.  (1) Which among the two has more metallic character (2) Calculate the valency of each element.  (3) Element y is smaller than x in terms of atomic size. It this statement true,  justify?​

Answer 1

Answer:

(1) Element X has more metallic character

(2) Valency of element X is 1 and valency of element Y is 3

(3) Element Y is smaller than X in terms of atomic size -True

Explanation:

Atomic size decreases from left to right in the periodic table

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